/*
 * Copyright 2023 ByteDance and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

use std::collections::HashMap;
use std::sync::{Arc, Mutex};

use once_cell::sync::Lazy;

use super::LoggerStats;

static RUNTIME_LOGGER_REGISTRY: Lazy<Mutex<HashMap<String, Arc<LoggerStats>>>> =
    Lazy::new(|| Mutex::new(HashMap::new()));

pub(super) fn add(name: String, stats: Arc<LoggerStats>) {
    let mut ht = RUNTIME_LOGGER_REGISTRY.lock().unwrap();
    let _ = ht.insert(name, stats);
}

pub(super) fn foreach_stats<F>(mut f: F)
where
    F: FnMut(&str, &Arc<LoggerStats>),
{
    let ht = RUNTIME_LOGGER_REGISTRY.lock().unwrap();
    for (name, server) in ht.iter() {
        f(name, server)
    }
}
